<template>
  <div class="component-upload-image">
    <div class="flex">
      <div v-for="(item,index) in fileList" :key="index" class="videoitem">
        <video :src="item.url" class="video-avatar" controls="controls">
          您的浏览器不支持视频播放
        </video>
        <i class="el-icon-remove f-18 deleicon" @click="handleDelete(item)"></i>
      </div>
      <div class="uplodvideo" v-if="fileList.length < limit">
        <i class="el-icon-plus f-22"></i>
        <input type="file" class="videoinput" ref="imageUpload" name="" id="videoinput" multiple @change="changeVideo" />
      </div>
    </div>
    <!-- <el-upload
      multiple
      drag
      :action="uploadImgUrl"
      list-type="picture-card"
      :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload"
      :limit="limit"
      :on-error="handleUploadError"
      :on-exceed="handleExceed"
      ref="imageUpload"
      :on-remove="handleDelete"
      :show-file-list="true"
      :headers="headers"
      :data='dataParams'
      :file-list="fileList"
      :on-preview="handlePictureCardPreview"
      :class="{hide: this.fileList.length >= this.limit}"
    >
      <i class="el-icon-plus"></i>
    </el-upload> -->

    <!-- 上传提示 -->
    <div class="el-upload__tip" slot="tip" v-if="showTip">
      请上传
      <template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
      <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
      的文件
    </div>

    <el-dialog
      :visible.sync="dialogVisible"
      title="预览"
      width="800"
      append-to-body
    >
      <img :src="dialogImageUrl" style="display: block; max-width: 100%; margin: 0 auto"
      />
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from "@/utils/auth";
//import { uploadPhoto } from "@/api/comm";
export default {
  props: {
    value: [String, Object, Array],
    // 图片数量限制
    limit: {
      type: Number,
      default: 5,
    },
    // 大小限制(MB)
    fileSize: {
       type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["png", "jpg", "jpeg"],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true
    }
  },
  data() {
    return {
      number: 0,
      uploadList: [],
      dialogImageUrl: "",
      dialogVisible: false,
      hideUpload: false,
      baseUrl: this.domain+'/',
      uploadImgUrl: this.domain + "/custom/api/upload", // 上传的图片服务器地址
      headers: {
        "XX-Token": getToken(),
        "XX-Device-Type": "web",
      },
      dataParams:{},
      fileList: []
    };
  },
  watch: {
    value: {
      handler(val) {
        if (val) {
          // 首先将值转为数组
          const list = Array.isArray(val) ? val : this.value.split(',');
          // 然后将数组转为对象数组
          this.fileList = list.map(item => {
            if (typeof item === "string") {
              if (item.indexOf(this.baseUrl) === -1) {
                  item = { name: this.baseUrl + item, url: this.baseUrl + item };
              } else {
                  item = { name: item, url: item };
              }
            }
            return item;
          });
        } else {
          this.fileList = [];
          return [];
        }
      },
      deep: true,
      immediate: true
    }
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  methods: {

    changeVideo(event){
      console.log('event:', event)
      var file = event.currentTarget.files[0]
      this.handleBeforeUpload(file)
      var formData = new FormData();
      formData.append("file", file);
      formData.append("type", 'home');
      // uploadPhoto(formData).then((res) => {
      //   this.handleUploadSuccess(res, file)
      //   // if (res.code == 1) {
      //   //   // console.log('图片：',res.data);
      //   //   this.$message.success("上传成功");
      //   //   this.imgsrc = process.env.VUE_APP_BASE_API + "/" + res.data;
      //   //   this.form.url = res.data;
      //   //   document.getElementById("uploadimg").value = null;
      //   // }
      // }).catch(()=>{
      //   this.handleUploadError()
      // });
    },

    // 上传前loading加载
    handleBeforeUpload(file) {
      let isImg = false;
      if (this.fileType.length) {
        let fileExtension = "";
        if (file.name.lastIndexOf(".") > -1) {
          fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
        }
        isImg = this.fileType.some(type => {
          if (file.type.indexOf(type) > -1) return true;
          if (fileExtension && fileExtension.indexOf(type) > -1) return true;
          return false;
        });
      } else {
        isImg = file.type.indexOf("image") > -1;
      }

      if (!isImg) {
        this.$modal.msgError(`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`);
        return false;
      }
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$modal.msgError(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.$modal.loading("正在上传，请稍候...");
      this.number++;
    },
    // 文件个数超出
    handleExceed() {
      this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传成功回调
    handleUploadSuccess(res, file) {
      if (res.code === 1) {
        this.uploadList.push({ ...res.data, url: this.baseUrl + res.data.url });
        this.uploadedSuccessfully();
      } else {
        this.number--;
        this.$modal.closeLoading();
        this.$modal.msgError(res.msg);
        this.$refs.imageUpload.handleRemove(file);
        this.uploadedSuccessfully();
      }
    },
    // 删除图片
    handleDelete(file) {
      const findex = this.fileList.map(f => f.name).indexOf(file.name);
      if(findex > -1) {
        this.fileList.splice(findex, 1);
        this.$emit("input", this.listToString(this.fileList));
      }
    },
    // 上传失败
    handleUploadError() {
      this.$modal.msgError("上传图片失败，请重试");
      this.$modal.closeLoading();
    },
    // 上传结束处理
    uploadedSuccessfully() {
      if (this.number > 0 && this.uploadList.length === this.number) {
        this.fileList = this.fileList.concat(this.uploadList);
        this.uploadList = [];
        document.getElementById('videoinput').value = null
        this.number = 0;
        this.$emit("input", this.listToString(this.fileList));
        this.$modal.closeLoading();
      }
    },
    // 预览
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },
    // 对象转成指定字符串分隔
    listToString(list, separator) {
      let strs = "";
      separator = separator || ",";
      for (let i in list) {
        if (list[i].url) {
          strs += list[i].url.replace(this.baseUrl, "") + separator;
        }
      }
      return strs != '' ? strs.substr(0, strs.length - 1) : '';
    }
  }
};
</script>
<style scoped lang="scss">
.uplodvideo{
  width: 120px;
  height: 120px;
  line-height: 120px;
  background-color: #fff;
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  text-align: center;
  position: relative;
  i{
    font-size: 28px;
    color: #8c939d;
  }
  .videoinput{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    cursor: pointer;
  }
}
.videoitem{
  width: 142px;
  height: 120px;
  margin-right: 15px;
  background-color: #fff;
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  position: relative;
  .video-avatar{
    width: 100%;
    height: 100%;
  }
  .deleicon{
    position: absolute;
    top: -10px;
    right: -10px;
    color: red;
    cursor: pointer;
  }
}
// .el-upload--picture-card 控制加号部分
::v-deep.hide .el-upload--picture-card {
    display: none;
}
// 去掉动画效果
::v-deep .el-list-enter-active,
::v-deep .el-list-leave-active {
    transition: all 0s;
}

::v-deep .el-list-enter, .el-list-leave-active {
    opacity: 0;
    transform: translateY(0);
}
::v-deep .el-upload-list--picture-card .el-upload-list__item{
  width: 120px;
  height: 120px;
}
 ::v-deep .el-upload--picture-card{
  width: 120px;
  height: 120px;
  line-height: 120px;
  border: 0;
 }
 ::v-deep .el-upload-dragger{
  width: 120px;
  height: 120px;
  line-height: 120px;
 }
</style>

